Do you feed him live or frozen rats? Have you changed anything recently with him? I noticed that if I change something for Lucy, I have to slowly introduce it. She seems to not respond very well to drastic change.
And I thought I'd mention that she pooped almost on me last night for the first time. I was helping her with her last bit of shed and she was draped with her tail over the edge of the tub and hanging toward the floor. I heard this "plop plop" and thought it was water leaking from somewhere. I was thinking "oh s***!" then looked and it was a literal translation. lol
At least i know that all the shed came off where it was most important besides her face.